Beta Value calculator

This is a quick calculator to find the beta value for a thermistor . If unsure on what R1 T1 etc are then go to the bottom of the page that demonstrates the formula and where to find the values in the datasheet.

Calculate Thermistor Beta Value

Enter Thermistor Resistance at Temperature 1 (R1 in Ohms):

Enter Temperature 1 (T1 in °C):

Enter Thermistor Resistance at Temperature 2 (R2 in Ohms):

Enter Temperature 2 (T2 in °C):

Calculate Beta Value

More resource on thermistors

• Introduction to thermistors
• Thermistor probes
• Custom temperature probes

How are Beta values found?

• Beta values are found using the Beta value formula between two resistances and their corresponding temperature.
• They are also given in the datasheet and named in the specification of the thermistor.

The B-Constant value is found in the datasheet with the temperatures that it was calculated across. In this case Beta value is given across 25°C and 50 °C

How to calculate Beta Values

The resistance table is available in the datasheet and is shown below ,The corresponding resistance can be found to the Temperatures referenced from the B-Constant Temperature 25°C and 50°C

Therefore using the values above and the Beta value formula,  lets prove how to calculate the Beta value it should equal 3900K

Using Values